Safety lock for automobile doors



Dec. 1, 1953 F. ZIOMEK 2,660,874

SAFETY LOCK FOR AUTOMOBILE DOORS Filed 001'? l 1951 Patented Dec. 1, 1953 oFFIoE] 2,660,874 SAFETY LOCK FOR AUTOMOBILE DOORS v' Frank Zioinek, Brooklyn, N. Y. Application October 1, 1951, Serial No. 249,064

This invention relates to safety locks forautomobile doors, and the main object is the provision of a novel, useful and practical locking means for locking the common vertically slid able safety bolt provided on the inside of automobile doors to prevent opening .of the door.

As is Well known, accidents frequently occur owing to the inadvertent opening of an automobile door while the vehicle is inmotion, and this is particularly true of small children who are apt to release a door; while experimentally fingering all things at hand. This invention provides a positive'locking means to prevent release of the safety bolt so that the latter may be released onlyafter the locking means has been operated by means of a key or otherwise.

The above as well as additional objects will be clarified in the following description wherein characters of reference refer to like-numbered parts in the accompanying drawing. It is to be 12 noted that the drawing is intended solely for'the purpose of illustration and that it is therefore neither desired nor intended to limit the invention to any or all of the exact details of construction shown except insofar as they may be deemed essential to the invention.

Referring briefly to the drawing,

Fig. 1 is a fragmentary perspective view of an automobile having, merely by way of example, the instant invention applied to the rear door thereof.

Fig. 2 is an enlarged fragmentary perspective view of the automobile, illustrating the invention more clearly.

Fig. 3 is a view substantially similar to Fig. 2, 3

showing the safety locking means in released position.

Fig. 4 is a sectional view taken on the line 4-4 of Fig. 2.

Referring in detail to the drawing, the numeral I0 indicates an automobile door provided with the handle I I on the outside thereof for operation of the slide bolt I2 of the lock housing I3. Such doors are further provided with a vertical slide bolt or pin I4, slidably mounted in the I window ledge or sill I5, to lock the slide bolt I2 in extended or looking position from within the vehicle. The structure so far described is standard, and it has therefore been deemed unnecessary to illustrate or describe the same in detail,

other than to state that when the pin It is depressed the bolt I2 is prevented from being withdrawn into the housing I3 by turning the handle II, and that normally the pin I4 lies in the raised position shown in Fig. 3.

vclaiins. (01.70-181) The invention consists in the provision of. an auxiliary lock. I6 including an upstanding housing I I which may be cylindrical, as shown. A leg I8 extends down from the housing I! and has a horizontal extension or foot 20 by means of which. the auxiliary lock may be attached,,by means of a screw or screws, adjacent the pin I4, thus supporting the housing I I in raisedposition above the sill I5. A horizontal plate or tongue I9 is pivotally attached by means of a screwor the like 2I to the lowerend of the cylinder I1 and. is provided with a raised projection 22. For a distance of about a quadrant, the lower edge of the cylinder IT is recessed, as shown at 23;, and the two ends of this quadrantal recess serve as limit stops to the projection 22 and hence to the movement of the tongue; IS on its pivot.

A cylinder lock barrel 24 is rotatably mounted in the housing I1, and the screw ZI registers threadably in a threaded opening in the lower end ofthe barrel, thus attaching the tongue I9 to this barrel, Any standardkey-operated type of locking means may be provided in the housing I! to permit a key, such as 25, to rotate the barrel 24, and hence the tongue I9, through a quadrant,

from the position of the tongue shown in Fig. 4 to that shown in Fig. 3. It is thus apparent that, after depressing the pin I I, the tongue I9 may be swung over the pin to prevent lifting of the pin and hence prevent release of the slide bolt I2. Since it is necessary to insert the key 25 to rotate the tongue back to the position shown in Fig. 3, it is apparent that the door cannot be opened inadvertently, or' by the groping of a small child, thus providing complete safety against accidental or unintentional opening of the door while the vehicle is in motion.

It is also to be noted that the device of this invention is very simple and inexpensive in cost of manufacture.

Obviously, modifications in form or structure may be made without departing from the spirit or scope of the invention.

I claim: I

1. In a vehicle door having a slide bolt lock for locking the bolt in extended position and including a window sill and a pin vertically slidably mounted in said sill engageable with said bolt for locking said bolt in extended position when said pin is depressed, the improvement consisting of an auxiliary lock for releasably locking said pin in depressed position comprising an upright member mounted on said sill adjacent said pin, said upright member having a lock barrel rotatably mounted thereon in ver-.

tonguecovering sai ferential length at least equa ito the-iength oi said arc, the upper edge of said tongue having an upward projection thereon registering iii safd recess and having a width substantially less than said length of said recess.

3. In combination with a support hav ing ap'in slidably mounted in and projecting from the support'an'd provided with limit stops-limiting the pin'between an outer'eiitendedsextreme position and an inner depressed extreme .p-osition'with respect to thei support, mearisior locking said phi' feleasably in said inner *extremejposition and simultaneously covering the outer extremity of said pin coin-prising an arm secured to SaidFsnpport=adjaceiitsaid pmsaid arm havinga mernher fotatably mounted thereon -on an axis 1 parallel with the pin-,sai-d' member havings tongue secured to the lower -erid'there'of and extending substantially at-r'ight angles -ther'eto, said tongue being positioned at a P distance from said-support substantially equal to the distance ei the' pro- 'ecting extremity of the'pinwlien'tne pin is in said eiitrenie inner posltioriysaid member being adapted to be s ung on its axis ='rrom-- a position wherein the-tongue is adjacent the outer extremity of the pin'and' in alignment withthe pin through anarc to a positiorr'wherei'nsaid tongue is out of alignment with the pin-, sai'd d outward extremity of the pin in said depressed position of the pin and with said tongue in alignment with the pin as aforesaid and thereby providing a cover over said pin to prevent grasping of the pin.

4. The combination set forth in claim 3, said member comprising a key lock barrel, and a key insertible into said barrel for thus swinging the member.

5. The combination set forth in claim 3, said having a cylinder 'i fid thereon s'ifirround- Tng'said inenibeifthat i'idbf s'aid cylinder nearest the support having a recess therein of a cir- "cnmferential length at least equal to the length :of said-arc;;said -tongue having a projection thereon registering in said recess and having a substantially less than said length of said recess.

The combination set forth in claim 3, said having a cylinder rigid thereon surrounding said member, that end of said cylinder nearest the support having-a recess thereinof-a; circumferential length at least" equal to the "lengtn of said: arc, said tongue: havihga projection thereon registering in said recess and having awidth substantialiyiless than said lengthof saidrecess, said member "comprising a: key lock barrel, and

'a -key insertible into said barrel for thuseswingingsaid member.

7. The comhination -setifortii imclaintfi; said tongue having a widthat least equal to the diam eter of said pin thereby concealing-said extremity of 1 the 1 pin ther'beli'ind.

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